946681 has 2 divisors, whose sum is σ = 946682. Its totient is φ = 946680.

The previous prime is 946669. The next prime is 946697. The reversal of 946681 is 186649.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 241081 = 840^2 + 491^2 .

It is an emirp because it is prime and its reverse (186649) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 946681 - 2¹⁹ = 422393 is a prime.

It is a super-2 number, since 2×946681² = 1792409831522, which contains 22 as substring.

946681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (946661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473340 + 473341.

It is an arithmetic number, because the mean of its divisors is an integer number (473341).

2⁹⁴⁶⁶⁸¹ is an apocalyptic number.

It is an amenable number.

946681 is a deficient number, since it is larger than the sum of its proper divisors (1).

946681 is an equidigital number, since it uses as much as digits as its factorization.

946681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 946681 is about 972.9753337058. The cubic root of 946681 is about 98.1901417425.

The spelling of 946681 in words is "nine hundred forty-six thousand, six hundred eighty-one".